Container and part therefor



March 4, 1941. P. ZALKIND CONTAINER AND .PART THEREFOR Filed Oct. 16,1933 7 Sheets- Sheet 1 H ......\...M.H i

INVENTOR ATTORNEY March 4, 1941. P. ZALKlND 2,233,906

CONTAINER AND PART THEREFOR Filed Oct 16, 1933 '7 Sheets-Sheet 2 March4, 1941. P. ZALKIND CONTAINER AND PART THEREFOR Filed Oct. 16, 1933 'TSheets-Sheet 5 dad? fi 4 I I I I I I I I I I I I I I l a l I l. I a n IATTORNEY March 4, 1941.

P. ZALKIND CONTAINER AND PART THEREFOR Filed Oct. 16, 1933 '7Sheets-Sheet 4 INVENTOR.

ATTORNEY.

March 4, 19421.. ZALKIND 2,233,906

CONTAINER AND PART THEREFOR Filed Oct. 16, 1933 'T Sheets-Sheet 5INVENTOR.

ATTORNEY.

March 4, 19410 ZALKIND 2,233,905

CONTAINER AND PART THEREFOR Filed Oct. 16, 1953 7 Sheets-Sheet 6INVENTOR.

,flhili Zkina' BY ,0 %a

ATTORNEY.

March 4, 1941. P. ZALKIND CONTAINER AND PART THEREFOR Filed Oct. 16,1935 7 Sheets-:Shet 7 INVENTOR 2 [kind ATTORNEY Patented Mar. 4, 1941UNITED STATES PATENT OFFICE 11 iClaims.

My invention relates to novel structural members, and more particularly,relates to collapsible containers and novel securing and reinforcingmetallic members to be used therewith.

In collapsible containers such as described in my copending applicationSerial Number 631,682, filed September 3, 1932, which matured intoPatent No. 1,946.516, Feb. 13, 1934, of which this application is acontinuation in part, reinforcing members, preferably made of metal, areapplied to the edges of the casing. In order to permit the casing to becollapsed for shipment, it was necessary as described in thatapplication, to reverse the position of at least two of the reinforcingmembers from their operating position so as to prevent bulging of thematerial along the internal edge of the casing by the reinforcingmembers. In assembling the casing, the position of the reinforcingmembers was then reversed to its operating position.

I have discovered that by .a novel fabrication of metal, I can bend italong predetermined lines, such fabricated metal thereafter having avariety of uses. Among other uses, such members may be used to securetwo parts to each other; to reinforce casing edges; etc. In the lattercase, the members are permanently secured to the edges of the casingsand are bent over the casing edge along predetermined lines to form areinforcing member.

Accordingly, objects of my invention are to provide a novel fabricatedmetal; a novel method of and means for bending metal along predeterminedlines; a metal in which a differential of tensilestres's' is producedwith respect to other forces along a line for predetermining the shapeof the metal; a metal weakened along a line for predetermining the shapeof the metal; a metal perforated and/or slotted along a line forpredetermining the bend of the metal therealong; a metal memberfabricated as above for reinforcll'lg casings; metal of the typedescribed above for securing members to each other; a reinforcing memberfor casings which is permanently secured to the' casings and which doesnot prevent collapse of the casing for shipment; a metal member adaptedto secure the free edges of a casing for forming a tube; .a metal memberfor preforming and securing adjacent sides of a container.

In the drawers of the type disclosed and described in application SerialNumber 631,682 referred to hereinbefore, metallic handles are secured tothe front wall. These metallic members are preferably secured throughthe front wall of the casing to a metallic plate in face to facerelation with the rear face of the front wall. To this end, provisionmust be made for securing the metal plate to the front metallic memberwhich carries the handle. I have discovered a novel construction ofmetal which permits a simple and easy interlocking and securing of twometallic members to each other.

Accordingly, further objects of my invention are to provide novelapparatus for and methods of securing metal to metal; novel securingmeans; novel .apparatus for and methods of securing a handle; to providenovel fabrication of metal; to provide an arcuate metallic memberprotruding from and integral with a member and to provide a novel prongconstruction.

Heretofore, in providing a back wall for a casing it has been necessaryto provide full flaps and secure these by tab means or the like. Theseare ineificacious, diflicult to properly form and do not provide astrong rear wall.

I have discovered that by employing a separate member and suitablysecuring it in accordance with my invention, I obtain a strong, securebacking for the casing.

Accordingly, further objects of my invention are to provide a novelconstruction for a casing backing; to provide a construction for forminga shell or casin from a tube and to provide a separable member for acasing backing.

In the movement of the drawers in and out of the casing, it is desirablethat as much freedom of movement as possible shall be obtained. I havediscovered that by moving the drawer on a novel roller construction overa track, I can obtain greater freedom of movement of the drawer withrespect to the casing.

Accordingly, further objects of my invention are -to provide novelapparatus for and methods of :moving drawers into and from its casing onrollers; novel... apparatus for and methods of mounting collapsibledrawers to be moved on rollers from and into a collapsible casing;tracks securedto the casing and/or to the drawer and rollers" mounted onthe casing and/or drawer cooperating with'the first mentioned tracks forproviding a maximiun freedom of movement of the drawer with respect tothe casing.

Further objects of my invention are to provide novel follow blocks formy casing and novel casings and drawers.

There are other objects of my invention which together with theforegoing will appear in the detailed description following inconnection with the drawings in which:

Figures 1 to 4 are perspective views of my novel metal constructionpermitting predetermined shaping.

Figures 5 to 8 are cross sections illustrating the shapes into which theconstructions shown in Figures 1 to 4 respectively may be formed.

Figures 9 to 11 are perspective views showing 1 the adaptation of theconstructions shown in Fi ures 1 to 4 to a reinforcing member used inconnection with my novel casings.

Figure 12 is a detail of the construction shown in Figure 9.

Figures 13 to 15 are details of the interlock employed for my casings.

Figures 16 and 17 are perspective views of a casing and drawerrespectively provided with my novel reinforcing members with the drawermovable on rollers.

Figure 18 is a cross section through |8-|8, Figure 16.

Figure 19 is a cross section through |3|3, Figure 17.

Figure 20 is a cross section through 20-20, Figure 17.

Figure 21 is a cross-section through 2|--2|, Figure l7.

Figure 22 is a. cross section through 22- 22, Figure 17.

Figure 23 is a cross section through 23--23, Figure 1'7.

Figure 24 is a cross section through 24-24, Figure 1'7;

Figure 25 is a cross section through 25-45, Figure 17.

Figure 26 is a perspective view of the casing with part of the materialcut away to show my novel construction of track secured to the casing.

Figure 2'7 is a perspective view of the drawer cooperating with thecasing of Figure 26 showing a roller mounted on the rear wall thereof.

9' Figure 28 is a perspective fragmentary view of a modified form ofdrawer.

Figure 29 is a perspective view of a casing showing a furtherapplication of the novel fabricated member. r

' Figures30 to are detail views of other forms of rollers used in mypreferred form of drawer.

Figure 36 is a perspective view of a stack of casings interlocked withan interlock of the type shown in Figure 15.

Figure 37 is a cross section through 31-31 of Figure 36.

Figure 38 is a perspective view of an application of the interlock shownin Figure 14 for a stack of casings.

a metallic member II is constructed with longitudinal rows ofcorrugation I2, l3 and I4 and spaced by sections [4 and I5. As will beevident, in such a member there is a differential of the resistance totortional stress along a line transverse to the corrugations between thelongitudinal corrugations I2 and section I4. If therefore with the metalsupported somewhere along the corrugapoint along the corrugations l2 andat right angles to the plane of the member of Figure 1, the metal willhave greater resistance to the bending force along the corrugation |2than at section l4 where the bending moment will be suflicient to bendalong a line along section i4 and transversely of corrugations l2 andI3, due to the considerably greater resistance to such movement alongthe latter corrugations. It is thus possible to provide a predeterminedshaping of the member I I bent along the sections l4 and I5 asillustrated in figures where the metal is shown supported on a base Hi.In actual practice, only minute corrugations are necessary, but forpurposes of clarity, the corrugations are shown considerablyexaggerated. Although to illustrate my invention. I have shown thisprinciple applied to a metal member, it will be obvious that the sameresults may be obtained with any other blank material such as corrugatedboard and the like having flexibility.

. In a modified form of my invention shown in Figure 2, I provide aseries of slots 2| interposed between the corrugations 2'2 and 23 of themetal member 24. In this case also, due to the weakened conditionproduced along the slots or perforations 2|, if the metal is supportedsay at 23 and a force is applied at right angles to the plane of themetal, the metal will bend along a line through the center of slots 2|as an axis, the corrugations 22 and 23 again providing increasedresistance against any bending tendency thereat compared to the lesserresistance of the slotted portions of the metal. The metal hereillustrated as mounted on support 25 may assume the position shown inFigure 6. Although corrugations are shown at 22 and 23, it will beobvious that in some circumstances with the proper strength of metal,perfo rations or slots 2|, alone and without the corrugations, willprovide a sufficient differential between the bending stress at 2| andthe remaining areas to provide proper bending along 2|.

In Figure 3, I have shown a modification of Figure 1, in which aplurality of transverse corrugations 26 interposed between thecorrugations 21 and 28 provide a predetermined bending curve. The bendalong corrugations 26 will assume a curve as illustrated at 29, Figure7, where the member is shown supported on the base 30. By varying thenumber of such corrugations, it will now be obvious that any desired areor bend may be obtained.

In Figure 4 I have illustrated a plurality of corrugations 3| interposedbetween flat members 32 and 33 which, as described in connection withFigure 2', may under certain circumstances provide a sufficientdifferential between corrugations 3| and surfaces 32 and 33 to bend themetal in a predetermined shape as shown at 34 supported on base 30, inFigure 8'.

In Figure 9, I have illustrated the application of the principledisclosed in Figures 1 to 4 to a metal reinforcing member which is usedin connection with an improved construction of casing having the generalconstruction of the casing shown in my application referred to above.

As shown, the member 35 is provided with a plurality of securing prongs36, 31, 38 and 39 formed by punching these prongs from the metal toprotrude at right angles to the surface of the metal. Each prongconsists of substantially triangularly shaped members having curvedsides and base, and functioning as will be described hereinafter in moredetail, to secure member 35 to the wall of any member such as the wallof a casing near its edge as will be described in detail hereinafter.Two pockets 43 and 44 formed by slitting and embossing the metal arelocated at the opposite ends of member 35 with their open ends facingthe adjacent end of the casing and are provided for the purpose to beexplained hereinafter in connection with interlocking adjoining casing.Along one edge of the member 35 is the embossing 45 for forming a rabbetin the reinforcing member. Mounted on this rabbetis a pin 45 carrying afreeto-rotate roller ll.

Extending along the member 35, Figure 9, are two rows of slots 5! and 52shown in more detail in Figure 12. Each of these slots are formed bypunching slits 48, 19 and 55 along three sides (if a rectangle in themetal, the same punching operation also bending the metal into anarcuate shape as shown at 59 and 54.

With such a metal suitably secured as by the prongs 35 to a supportingbase such as the wall of a casing, a force applied at right angles tothe plane of the member will invariably bend it into an are formed bythe two rows of slots 5| and 52 due to the differential in the bendingresistance of the metal, as illustrated at 55 in Figure 18. As themember 35 is bent inwardly and assumes an arcuate shape, the sides 48and 50 refill the space between these sides and curvature 55. Thus, asthe metal is bent, it automatically assumes a predetermined curved shapewith the edges of the slitted metal and the edges of the main section inengagement with each other.

In Figure 10, I have shown an alternative construction of reinforcingmembers in which a series of cut-out slots or perforations extendingalong the metal 56 provide a predetermined bending line along animaginary line extending along the slots and half way between the upperand lower edges. As in the case of Figure 9, suitable securing means byprongs 51 stamped from the metal are provided for the plate 56. As shownin Figure 27, the drawer 56 having front walls, side walls, and rearwalls, distinguishes from the drawer in my earlier application by theflanged ends 5i formed by bending the material back on itself for ashort distance before the tongue extensions 62 are turned intoengagement with the side wall.

The blank shown in Figure 46 comprises a main section 63 forming thebottom or floor wall of the drawer, sections 65, 65 scored at 66 to formone side Wall, sections 61 and 68 scored at 69 to form the opposite sidewall, sections 70 and H scored at 72 to form the rear Wall and sections73 and i l scored at E5 to form the front wall, sections 55, 61, 70 and13 being integral with thefmain section 63, all as is now well knownfrom the parent case.

The rear and front walls are provided with tongues 76 to 83. When therear wall sections are turned on their score lines i2, tongues 76 and Tioverlap and tongues '58 and i9 overlap in face to face relation. Whennow the rear wall is turned to a position at right angles to the section53 and tongues i6, i1 and 79, 80 are turned at right angles on theirscore lines into face to face relation with side wall sections 6 3 and61, respectively, sections 65 and 68 are turned on their score lines 66and 69 to envelope the tongues. Flaps 85 and 86 will be seated inopenings 81 and 98 in sections it and iii.

The front wall sections are folded in a similar manner with thisdifference: It will be noted that score lines 9i and 92 on tongues 89and 92 respectively are not aligned with score lines 99 and 94 oftongues 8i and 92 respectively. Moreover,

'and 82 are first turned on score lines 9| and 92 and then turned backon score lines 95 and 91, as illustrated in Figures 22 and 25. Thedistance from 95 to 96 is such that in the reentrant portion score 96 isopposite score 93- so that when the tongue M is turned to engage tongue89, the two may now be jointly turned to engage the side walls. A smallflange equal to the distance from score 93 to 9| will thus be formed.

Mounted on the side of the drawer 50 is a metallic member illl securedthereto by a suitable means such as prongs at 36 and 3? disclosed inFigure 9. As shown in the cross-sectional view, Figure 24, the member mlis curved at its uppper portion i 92 to form a track which cooperateswith a roller on the casing as will be described in the following: Asshown in Figure 24, the track llll is secured by the prong 36 to theside wall sections 64 and 61 of Figure 46, which form the outer sectionof the side walls. It will be understood that a similar track isprovided on the outer side of the opposite side wall from that shown inFigure 17.

Interposed between the outer wall 13 and the inner wall it of the frontwalls is a fiat handlesupporting member I03 to which is secured afabricated handle-supporting metal member I04 having rolledcylindrical-shaped ends N15 for receiving at the entrances thereof theends of the handle I06. Handle N16 is thus pivotally mounted in thefabricated metal member I04, which is in turn secured to plate 503. Anopening Nil cut in the outer wall i3 provides accessibility to thehandle Q05 which is so mounted with respect to the opening that when themember N13 is in serted in place, the handle will seat in the opening itand be flush with the surface of the outer section 73.

The casing I08, Figure 16, is provided with ver-' tical reinforcinmembers Hi9 and H0 fabricated in a manner described in detail inconnection with Figure 9 and having the same prongs 36 and 31 as shownin that figure, the pocket formation 33 and M5 receiving theinterlocking member, slit formations 5i and 52 forming the predeterminedbending line at the edge of the casing, the embossing 45 which providesa rabbet formation, the roller 41 mounted on a pin 36 for rotationthereabout, horizontal reinforcing members III at the top and bottom ofthe front edge of the casing, which extend from one of the reinforcinmembers M9 to the opposite reinforcing member H0.

Horizontal members Hi form a bearing for angle wire H2 having twosections H3 and H4 at right angles to each other. Angle wire H2 isarranged adjacent to the horizontal edges of the front wall of thecasing H18 and when the horizontal reinforcing member is slipped intoplace as shown in Figure 16, it secures the angle wire H2 in positionand forms a bearing therefor, about which one section or leg H3 may berevolved. Angle wire extensions from both the right and left-hand endsof both top and bottom horizontal reinforcing members iii are provided.

In practice. the casing is shipped collapsed, with the fabricated memberH19 extending in a plane as shown in Figure 9, that is to say, not bentalong the predetermined bending lines formed at El and 52. At the pointwhere the casing is to be used, the angle wires H2 are rockedin theirbearings until the vertical portion or leg section II4 of each of theseangle wires is against the vertical edge at the front of the casing.Members I09 and II are then bent along their predetermined bending linesencasing the vertical legs or portions II4 of the angle wires I I2.Secured to the rear edge of the casing I08 are reinforcing member H andH6, the details of which will be described hereinafter in connectionwith Figures 44 and 45.

In Figures 26 and 27, I have shown a modification of both the drawer andthe casing. In these figures, the drawer is provided with the sametracks II as the drawer in Figure 17. In addition, however, the draweris also provided with aroller I I1 secured to the rear wall section atthe point where the rear wall and its tongue extensions meet. A similarroller is, of course, provided on the opposite side of the rear wall.

The casing of Figure 26, in addition to being provided with the roller41 of figure on the vertical reinforcing members I09 and III], is alsoprovided with a track II8 similar in construction to the drawer track,except that the channelor track formation is at the bottom'rather thanat the top. The track H8 is located at a slightly elevated position withrespect to the roller 41 and in line with the roller II1, so that thelatter rides in track 8, while roller 41 rides in track WI. Thepositions of these rollers and tracks are such as to just support thedrawer on the base of the casing, but disengaged therefrom sufficientlyto prevent frictional engagement therewith.

In Figures 28, I have disclosed a further modification of the drawer, inwhich the edges of the drawer are reinforced by the fabricated metalmember I2I having the predetermined bending line formed at I22 so thatwhen the drawer is assembled, the metal member I22 secured by prongs I23to the outer side Wall is bent over into the position shown in Figure28.

In Figure 29, the casing is shown secured at its open edges by thefabricated metal member I25 which replaces the tape heretofore used.

In Figures to 35, I have showna further feature which may be applied tomy drawers, comprising rollers secured to the base or floor memberthereof for riding on a track in the casing. As shown in Figure 34, aflat member I 3I preferably made of metal may be provided with prongsstamped therefrom in a manner already described and may be scored toform a predetermined bending line at I33 and I34. At I35, the metal ispunched out, forming a pin support at the openings I36 and I31 for aroller when the metal is turned along its scorings I33 and I34 into theform shown in Figure 32.

A pin I4I having its ends I42 and I43 of reduced diameter protrudingthrough the openings I36 and I31 and providedwith the caps I44 and I45carries the ring I46. Between the rings I46 and I41, the roller ballbearings I48 are supported for permitting a free rotation of the rollerI49. The member I3I, after being formed in the shape shown in Figure 32is secured to the inner and outer side wall by its prongs as shown inFigure 31, the side of member I3I coming opposite the inner side wallbeing admitted therein through a suitable slot formed in the side wall.

Secured to the base of the casing is a member I5I having the dimensionssubstantially equal to the inner dimensions of the bottom of the casingand having tracks I52 and I53 formed therein at positions at which therollers I49 will ride in the track. Ina further form of my inventionthese tracks may be constructed as an inherent part of the base orbottom section of the casing.

In Figures to 43 I have disclosed a further form of supporting the sidewalls of the drawer to the front wall. Two fabricated metal mem-. bersare employed, in this arrangement, one as shown in Figure 43"comprisinga fiat metal member I6I having prongs I62 punched therein in a manneralready described in detail and having a number of elongated slots I63punched therein. Member I61 is admitted into the inner front wallthrough a suitable slot in the tongue extending from the front wall asshown in Figure 40 and secured thereto by mean of its prongs I62. Theslots I63 are arranged on that portion of the member IBI which protrudesfrom the side of the tongue. Secured to the front edge of the side wallI64 of the drawer is a second uncompleted U-shaped member I65 havingprongs formed therein at I66 and provided with a set of lugs I61 formedfrom the metal in a manner similar to the formation of the prongs. Theselugs, as will be seen from Figure 42 are formed at the curved portion ofmember I65. The lugs I61 are individually provided with depressedprojections I61 thereon having a spring action. When the member I65 isbrought into engagement with member I6I, these lugs, which are cut sothat they are in alignment with the slots I63, may be inserted intothese slots. The projections I61 are so arranged as to pass through theslots I63 by spring action and lock the wall members of the drawer intoplace.

In assembling the drawer, the front wall is raised to its verticalposition with the tongue turned inwardly and the side wall is thenraised to the position shown in Figure 40 and the lugs I61 are forcedthrough the perforations, locking the side and front walls to eachother.

In Figures 13 and 15 and 36 to 38, I have illustrated an arrangement forproviding an interlock between the casings in a vertical stack and in ahorizontal stack. In Figure 13 I have shown the simplest form ofinterlock comprising a metal member "I having an embossed centralportion at I12 in which 9. lug is punched, as shown at I13. The ends I14and I15 of the member I1I are arranged to seat themselves in the pocketsI16 and I11, Figure 38, which are formed on the reinforcing members I18and I19 of adjacent casings and are similar in construction to thatdescribed in detail in connection with the embossed pockets 43 and 44 ofFigure 9.

In actual practice, one end I14 of member "I is first inserted in thepocket I11 of the reinforcing member I16 of the lower casing, the pocketI16 of the reinforcing member I18 on the upper casing is then broughtnext to the upper edge of the interlocking member, and the end I15 ispermitted to slip into place as shown in Figure 38.

In another form of interlock, especially suitable for the rear of thecasing, I provide a substantially U-shaped member I8I havingturnedin'ends I83 and I84. Member II is adapted to be slipped over thehorizontal reinforcing members on the rear walls of the casing, of theform to be described hereinafter. Thus as illustrated in Figures 38 and39, the member I8I encases the two reinforcing members I85 and I86 andthe turned-in ends form locking lugs for this interlock.

In a further adaptation of my interlock for securing not only thevertical colun'm of casings, but also adjacent horizontal casings, Iprovide a substantially U-shaped member I! having lugs I92 and I93punched therein and having an extension I93 integral with the U-shapedmember I9I. Extending transversely of said U and integral with theextension I93 is a fiat member I95 having lugs I96 and I9? punchedtherein. As shown in Figure 36, the U-shaped portion I9I is slipped overthe horizontal reinforcing members until the lugs I93 and I96 engage therear of the reinforcing member and lock the interlock in position. Theextension I95 brings the portion I95 in surface contact with thevertical reinforcing members of the two adjacent casings beinginterlocked. The lug I96 now provides a receiving pocket forcorresponding lug I91 on the interlock secured to the next adjacentcolumn of casings and the opening formed by the lug I91 in turn forms apocket for the corresponding lug I96 of the adjacent interlock. Thus,the U-shaped member I9I' of the adjacent interlock is provided with thetransverse member I95' having lugs I96 and I91 formed thereon which, asshown in Figure 37,

cooperate with the lugs I96 and I91.

In Figures it and 45 I have shown a completed setup of the casing as itis received in shipping and before complete assembly. In Figure 44, thecasing is shown after it has been received in shipment and turned on itsscored lines into the form of a shell. The angle wires 203 protrudingfrom the horizontal reinforcing members 28 3 are in position to beturned in their bearings to a position adjacent to the vertical frontedges of the casing so that as the vertical reinforcing member 2% isturned, on its predetermined bending line 288 and the verticalreinforcing member 261 is turned on its predetermined bending line 288,they will encase the angle wires 2&3. At the rear of the casing Iprovide a member 2i I having score lines to form a shallow pan-likemember as shown in Figure 45. Along two sides U-shaped reinforcingmembers 2I2 and 293 are secured and so arranged that when the shallowpan-like member 2H is inserted into the rear of the casing, the members2 I2 and 2 I3 will slip over the edges of the casing limiting the inwardmovement of member 2. Thereafter the reinforcing members 2I5 and ZISsecured to the sides of the casing are turned along their predeterminedbending lines 2!? and 2m to engage the edges of the sides 2I9 and 22!!of the pan-like member 2, thus locking this member in engagement withthe casing.

In the above I have described my invention by illustrating preferredadaptations thereof, but it will be obvious that it may take other formsand I do not wish to be limited except as set forth in the appendedclaims.

1. A casing to be shipped in knocked down condition comprising scoredside, top, and bottom wall members; and an open front end; verticalmetallic reinforcing members for the sides of said open front end andsecurely affixed to the outside of the side wall members in the knockdown condition; a portion of said reinforcing members protruding beyondthe edges of said casing to permit said casing to be collapsed along thescorings for shipment, said protruding portion being adapted to bemanually folded into contact with the inside of the side wall uponaffixed to the side wall members in the knocked down condition; aportion of said reinforcing members protruding beyond the edges of saidcasing to permit said casing to be collapsed along the scorings forshipment, said reinforcing members being fabricated to produce apredetermined bending line along which the protruding portion is bent toencase the edges of said casing.

3. A casing to be shipped in knocked-down condition comprising scoredside, top and bottom wall members; an open front end; vertical metallicreinforcing members for the sides of said open front end and securelyaflixed to the side wall members in the knocked down condition; aportion of said reinforcing members protruding beyond the edges of saidcasing to permit said casing to be collapsed along the scoring forshipment; said reinforcing members being slitted in parallel rows toform a predetermined bending curvature which starts at the outside edgeand terminates on the inside edge of the casing edges.

4. A casing to be shipped in knocked-down condition comprising scoredside, top and bottom wall members; an open front end; reinforcingmembers for said open front end; a portion of said reinforcing membersprotruding beyond the edges of said casing when the casing is 001-lapsed to permit said casing to be collapsed along the scoring forshipment and rollers mounted on the protruding portion of saidreinforcing'memher.

5. A casing having top, bottom, and side sections connected by scorelines; an open front end section; vertical reinforcing members securedsolely to the outside surface of said casing along the vertical edges ofsaid open front end to permit said casing to be shipped in knockeddowncondition and means whereby when said casing is turned on its scoringsinto an assembled unit, said reinforcing members are manually turnableabout said vertical edges into a U formation.

6. A casing having top, bottom, and side wall sections connected byscore lines; an open front end section; vertical reinforcing memberssecured solely to the outside surface of said casing along the verticaledges of said open front and to permit said casing to be shipped inknocked-down condition; means whereby when said casing is turned on itsscoring into an assembled unit, said reinforcing members are manuallyturnable about said vertical edges into a U formation and reinforcingmembers secured to the horizontal front edges of said casing and anglewires pivotally held by said horizontal reinforcing members androtatable to be engaged by said vertical reinforcing members as saidlatter members are turned into a U shape.

7. A casing to be shipped in knocked-down condition comprising scoredside, top and bottom wall members; an open front end; reinforcingmembers for said open front end; a portion of said reinforcing membersprotruding beyond the edges of said casing to permit said casing to becollapsed along the scorings for shipment, and rollers mounted on saidprotruding portion of said reinforcing members, said rollers BIB lyingentirely without the casing when the casing is in collapsed condition.

8i A collapsible cabinet comprising the combination of a drawer sectionof a substantially fibrous board structure foldable into a substantiallyflat arrangement; a casing section of a substantially fibrous boardstructure for enclosing said drawer section, and foldable into asubstantially fiat arrangement; roller; mechanism associated with one ofsaid sections for slidably supporting said drawer within said casingwhen said sections are in assembled condition; reinforcing means securedto said one section for carrying said roller mechanism, whereby said onesection is foldable into said substantially flat arrangement with saidroller mechanism and reinforcing means attached thereto, with negligibleadditional thickness being required for said flat arrangement; and trackmechanism for coacting with said roller mechanism mounted on the otherof said sections, and adapted to strengthen said section whereby saidother section is foldable into said substantially fiat arrangement withsaid track mechanism mounted thereon.

9. A collapsible cabinet comprising the combination of a drawer sectionof a substantially fibrous board structure and a casing section of asubstantially fibrous board structure; each being foldable intosubstantially flat arrangement; roller mechanism associated with one ofsaid sections for slidably supporting said drawer within said casingwhen said sections are in assembled condition, and reinforcing meanssecured to said section for carrying said roller mechanism, said sectionbeing foldable into substantiallyflat arrangement withsaid rollermechanism and reinforcing means attached thereto; and track mechanismfor coacting with said roller mechanism mounted on the other of saidsections and adapted to strengthen said section,

saidbther section being foldable into substantially flat arrangementwith said track mechanism mounted thereon.

10. A collapsible cabinet comprising the combination of a drawer sectionand a casing section for enclosing said drawer section; each made offoldable sheet material; roller mechanism associated with one of saidsections for slidably supporting said drawer within said casing whensaid sections are in assembled condition; reinforcing means secured toone section for carrying said roller mechanism, said section beingfoldable into substantially flat arrangement with said roller mechanismand reinforcing means attached thereto, with negligible additionalthickness being required; track mechanism mounted on and adapted tostrengthen said other section for coacting with the roller mechanism,said other section being foldable into substantially flat arrangementwith said track mechanism mounted thereon.

11. A casing for a file cabinet or the like, said casing having an openfront end and comprising a bottom wall; side walls; a top wall; saidwalls being made of sheet material having fold lines between the top,bottom and side walls along which lines the same is manually ioldable toform said walls; reinforcing members at the front edges of said bottomand top walls; vertical reinforcing members at the front edges of saidside walls to produce greater compressive strength at the open frontthan that produced by the material in said side walls for carryingdownward stress of a load thereon, and means connecting horizontal andvertical reinforcing members to maintain rigid angular relationship; aroller on each of said vertical reinforcing members; said casing beingcollapsible with the reinforcing members and rollers mounted thereon.

PHILIP ZALKIND.

